问题
选择题
Mrs Smith ________ be at home now. She flew to Hainan this morning. [ ]
A. mustn't
B. can't
C. may not
D. needn't
答案
答案:B
Mrs Smith ________ be at home now. She flew to Hainan this morning. [ ]
A. mustn't
B. can't
C. may not
D. needn't
答案:B